oh so sorry you are going through this! Teenagers CAN be a handful and do know how to push our buttons. My oldest daughter gave us a real run for our money for about 2 years. I finally threatened to send her to boarding school and suddenly, she was a changed girl!!!
Don't be too hard on yourself. I might just say sorry I totally lost it and that I didn't mean it and to please STOP misbehaving!! Good luck and hugs!